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Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5

Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5
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3 votes
Solve 4r2 – 7 = 29.
a. +-6
b. +-3
c. +-4
d. +-5

User AdPartage
by
7.7k points

1 Answer

3 votes
4r^2-7=29
+7 both sides
4r^2=36
÷4 both sides
r^2=9
square root both sides
r=+/-3 B
User Chris Koknat
by
7.4k points
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